Join, Activerain and start a community blog about the area you are most interested in generating business. Write Localism posts on Activerain. Also, answer consumer questions here on Trulia. Answer them carefully and thoroughly. Care about the consumer who asks the question, don't do it just to rack up points!
Also, read the guidelines for any Realtor website that you join and.....actually follow them
Your reputation should be the the most important thing to you right now. Quality not Quantity!